Usage Tips:[Applications]Sometimes, when drilling holes in posts for the cables, wood tends to splinter off, leaving less than perfect holes. The sleeves have a silver flange on them which covers any rough edges of the drill holes. This angled protector sleeve is perfect for planning your cable railing project, providing beveled protector sleeves for the angle of your garden, stairs and aisle beside for indoor or outdoor applications.[Size]stair cable railing system. The sleeves will help your cable railing maintain proper tension over time.[T316 Stainless Steel]The cable railing angle beveled protector sleeve is made of stainless steel T316 marine grade, High tensile strength and anti-fatigue strength weatherproof. It is corrosion-resistant which makes our balustrade hardware suitable for coastal installations. Cable railing system requires hardly any maintenance. This wood post protector is suitable for outdoor or indoor.[Easy To Use]This stainless steel angled post protector can be used on wood/composite posts to prevent the cable from wearing into the wood. The sleeves are highly recommended to be used in post holes whenever the cable enters or exits a post on an angle (typically on corners). Often used in conjunction with straight wood post protector,Colour:SilverMaterial:Stainless Steel 316Specification:1/8, 30 Degree or 1/8, 45 Degree or 3/16, 45 Degree or 3/16, 30 DegreePackage Contents:40 x Cable Railing Post1 x drillOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.